I just noticed the overvoltage indicator on my UPS going on and off every few seconds, so I stuck a meter on the mains. It's varying from 240 to 253V every few seconds. Any reason a mains supply would do that?

--
"Th on my k yboard has stopp d working"

"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so precise? It thought they had to have exactly the right amount of power stations active.

It's not changing that quickly, in fact it's quite a smooth change, like I'm running off a generator where the engine is speeding up and slowing down. It's done this a few times before over the past couple of weeks, but only for about 2 minutes then stopped. This episode has been going on for half an hour, although every 5 minutes it stops doing it for 30 seconds. I think I'll disconnect anything sensitive overnight and if it's still doing it tomorrow I'll phone them up. Do they spot things like this with remote sensors or rely on people noticing? There is a VERY slightly noticeable change in the brightness of CFLs and incandescents, but LED bulbs don't at all. I doubt anyone would notice if they didn't have a UPS with a warning indicator. I've phoned them before to complain about getting 255 volts, but they just said "That's within tolerance" - I guess a fluctuation is considered worse though.

--
"It is generally inadvisable to eject directly over the area you just bombed." - U.S. Air Force Pilot training manual

On Thu, 01 Oct 2015 23:53:57 +0100, Tough Guy no. 1265 wrote:

On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so precise? It thought they had to have exactly the right amount of power stations active.

It's not changing that quickly, in fact it's quite a smooth change,

Which might be the case if they have lots of taps and they're changing between them gradually? How many do they have?

Seems to have stopped now anyway. Now I'm not sure if I should report it or not.

--
Why do people point to their wrist when asking for the time, but don't point to their crotch when asking where the bathroom is?

On Fri, 2 Oct 2015 08:29:54 +1000, Jim Thomas wrote:

I just noticed the overvoltage indicator on my UPS going on and
off
every few seconds, so I stuck a meter on the mains. It's varying
from
240 to 253V every few seconds. Any reason a mains supply would do

that?

Sounds like an automatic tap changer in the supply authorities system
has gone mental.

Possibly or there is a fault that isn't a) destroying itself b) big
enough to trip the protection.

TBH I'd go with an automatic tap changer or regulator having a hissy
fit. The challenge now is to convince the DNOs Customer Service that
you do know what you are talking about and it's a real, if weird,
fault.

Our DNO, Electricty North West, normally respond to weird fault
reports PDQ so if you call your DNO now you might find an engineer
knocking on your door in a hour or two's time...

--
Cheers
Dave.

"Tough Guy no. 1265" wrote in message
news
On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off
every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so
precise?

Yep. It's the only way to do that.

It thought they had to have exactly the right amount of power stations
active.

That doesn't work with the voltage at the end of the distribution system.
You have to vary the tap uses as the load on that segment changes.

It's not changing that quickly, in fact it's quite a smooth change, like
I'm running off a generator where the engine is speeding up and slowing
down. It's done this a few times before over the past couple of weeks,
but only for about 2 minutes then stopped. This episode has been going on
for half an hour, although every 5 minutes it stops doing it for 30
seconds.

Likely the fault is just getting worse.

I think I'll disconnect anything sensitive overnight and if it's still
doing it tomorrow I'll phone them up.

I'd do it now if it was mine, because its been happening
for a few weeks and is getting worse. It likely won't be that
easy to convince them that they have a problem tho and
that you are capable of monitoring the voltage properly.

Do they spot things like this with remote sensors or rely on people
noticing?

That varys with the system. Some do
have remote monitoring, but most don't.

We had the entire town grossly over voltaged one
evening as the load came off and the tap changer
didn't do anything. The PDP9 has an entire column
of fans up the side of the massive great door that
holds all the logic cards. The whole column quite
literally caught fire. Fortunately someone was
actually using it that evening and turned the
main switch off. Back in the 70s.

There is a VERY slightly noticeable change in the brightness of CFLs and
incandescents, but LED bulbs don't at all. I doubt anyone would notice if
they didn't have a UPS with a warning indicator.

Yeah, likely.

I've phoned them before to complain about getting 255 volts, but they just
said "That's within tolerance" - I guess a fluctuation is considered worse
though.

Specially over that short a term.

It might be someone running something strange on you
bit of the distribution system. Maybe someone has got the
whole place turned into a cannabis grow house under lights
just up the road or something.

"Tough Guy no. 1265" wrote in message
news
On Thu, 01 Oct 2015 23:53:57 +0100, Tough Guy no. 1265
wrote:

On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off
every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so
precise? It thought they had to have exactly the right amount of power
stations active.

It's not changing that quickly, in fact it's quite a smooth change,

Which might be the case if they have lots of taps and they're changing
between them gradually? How many do they have?

Seems to have stopped now anyway. Now I'm not sure if I should report it
or not.

--
Why do people point to their wrist when asking for the time, but don't
point to their crotch when asking where the bathroom is?

"Tough Guy no. 1265" wrote in message
news
On Thu, 01 Oct 2015 23:53:57 +0100, Tough Guy no. 1265
wrote:

On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off
every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so
precise? It thought they had to have exactly the right amount of power
stations active.

It's not changing that quickly, in fact it's quite a smooth change,

Which might be the case if they have lots of taps and they're changing
between them gradually?

Yeah, it shouldn't be very noticeable when it changes taps.

How many do they have?

That varys with the design.

Seems to have stopped now anyway. Now I'm not sure if I should report it
or not.

I would but like I said, you'll likely have problems convincing them.

On Thursday, 1 October 2015 23:20:36 UTC+1, Tough Guy no. 1265 wrote:
I just noticed the overvoltage indicator on my UPS going on and off every few seconds, so I stuck a meter on the mains. It's varying from 240 to 253V every few seconds. Any reason a mains supply would do that?

--
"Th on my k yboard has stopp d working"

Voltage varies locally according to the connected load.
It could be a neighbour using something like an electric welder or large power tool. This causes a voltage drop.

It could even the be passing clouds affecting someone's PV panels nearby.
My own + neighbour's panels drive the local voltage up around 10 volts on a sunny day.

You do seem to attract unusual problems recently from your posts. Maybe they
ARE out to get you?
:-)

Brian

--
From the Sofa of Brian Gaff Reply address is active
Remember, if you don't like where I post
or what I say, you don't have to
read my posts! :-)
"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

--
"Th on my k yboard has stopp d working"

"Brian-Gaff" wrote in message
...
You do seem to attract unusual problems recently from your posts. Maybe
they ARE out to get you?
:-)

Nar, it's just bad karma from what he gets up to with the cats and parrots.

"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

--
"Th on my k yboard has stopp d working"

On Fri, 02 Oct 2015 02:48:13 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off
every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so
precise?

Yep. It's the only way to do that.

It thought they had to have exactly the right amount of power stations
active.

That doesn't work with the voltage at the end of the distribution system.
You have to vary the tap uses as the load on that segment changes.

It's not changing that quickly, in fact it's quite a smooth change, like
I'm running off a generator where the engine is speeding up and slowing
down. It's done this a few times before over the past couple of weeks,
but only for about 2 minutes then stopped. This episode has been going on
for half an hour, although every 5 minutes it stops doing it for 30
seconds.

Likely the fault is just getting worse.

I think I'll disconnect anything sensitive overnight and if it's still
doing it tomorrow I'll phone them up.

I'd do it now if it was mine, because its been happening
for a few weeks and is getting worse. It likely won't be that
easy to convince them that they have a problem tho and
that you are capable of monitoring the voltage properly.

Do they spot things like this with remote sensors or rely on people
noticing?

That varys with the system. Some do
have remote monitoring, but most don't.

We had the entire town grossly over voltaged one
evening as the load came off and the tap changer
didn't do anything. The PDP9 has an entire column
of fans up the side of the massive great door that
holds all the logic cards. The whole column quite
literally caught fire. Fortunately someone was
actually using it that evening and turned the
main switch off. Back in the 70s.

There is a VERY slightly noticeable change in the brightness of CFLs and
incandescents, but LED bulbs don't at all. I doubt anyone would notice if
they didn't have a UPS with a warning indicator.

Yeah, likely.

I've phoned them before to complain about getting 255 volts, but they just
said "That's within tolerance" - I guess a fluctuation is considered worse
though.

Specially over that short a term.

It might be someone running something strange on you
bit of the distribution system. Maybe someone has got the
whole place turned into a cannabis grow house under lights
just up the road or something.

Lights wouldn't go on and off like that.

--
Maybe the grass looks greener on the other side of the fence because that is where the leaky septic tank is buried.

On Fri, 02 Oct 2015 02:51:51 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
On Thu, 01 Oct 2015 23:53:57 +0100, Tough Guy no. 1265
wrote:

On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off
every
few seconds, so I stuck a meter on the mains. It's varying from 240 to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so
precise? It thought they had to have exactly the right amount of power
stations active.

It's not changing that quickly, in fact it's quite a smooth change,

Which might be the case if they have lots of taps and they're changing
between them gradually?

Yeah, it shouldn't be very noticeable when it changes taps.

How many do they have?

That varys with the design.

Seems to have stopped now anyway. Now I'm not sure if I should report it
or not.

I would but like I said, you'll likely have problems convincing them.

I'll contact them in a moment....


--
Paper clips are the larval stage of coat hangers.

On Fri, 02 Oct 2015 06:06:55 +0100, harry wrote:

On Thursday, 1 October 2015 23:20:36 UTC+1, Tough Guy no. 1265 wrote:
I just noticed the overvoltage indicator on my UPS going on and off every few seconds, so I stuck a meter on the mains. It's varying from 240 to 253V every few seconds. Any reason a mains supply would do that?

--
"Th on my k yboard has stopp d working"

Voltage varies locally according to the connected load.
It could be a neighbour using something like an electric welder or large power tool. This causes a voltage drop.

It could even the be passing clouds affecting someone's PV panels nearby.
My own + neighbour's panels drive the local voltage up around 10 volts on a sunny day.

Neither of those are likely between 11:30pm and midnight.

--
A patient tells the Doctor, "I've been going to a faith healer, but wasn't getting any better."
The Doctor smiled and said, "And what dumb advice did this phony give you?"
"He told me to come see you." replied the new patient.

"Tough Guy no. 1265" wrote in message
news
On Fri, 02 Oct 2015 02:48:13 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off
every
few seconds, so I stuck a meter on the mains. It's varying from 240
to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so
precise?

Yep. It's the only way to do that.

It thought they had to have exactly the right amount of power stations
active.

That doesn't work with the voltage at the end of the distribution system.
You have to vary the tap uses as the load on that segment changes.

It's not changing that quickly, in fact it's quite a smooth change, like
I'm running off a generator where the engine is speeding up and slowing
down. It's done this a few times before over the past couple of weeks,
but only for about 2 minutes then stopped. This episode has been going
on
for half an hour, although every 5 minutes it stops doing it for 30
seconds.

Likely the fault is just getting worse.

I think I'll disconnect anything sensitive overnight and if it's still
doing it tomorrow I'll phone them up.

I'd do it now if it was mine, because its been happening
for a few weeks and is getting worse. It likely won't be that
easy to convince them that they have a problem tho and
that you are capable of monitoring the voltage properly.

Do they spot things like this with remote sensors or rely on people
noticing?

That varys with the system. Some do
have remote monitoring, but most don't.

We had the entire town grossly over voltaged one
evening as the load came off and the tap changer
didn't do anything. The PDP9 has an entire column
of fans up the side of the massive great door that
holds all the logic cards. The whole column quite
literally caught fire. Fortunately someone was
actually using it that evening and turned the
main switch off. Back in the 70s.

There is a VERY slightly noticeable change in the brightness of CFLs and
incandescents, but LED bulbs don't at all. I doubt anyone would notice
if
they didn't have a UPS with a warning indicator.

Yeah, likely.

I've phoned them before to complain about getting 255 volts, but they
just
said "That's within tolerance" - I guess a fluctuation is considered
worse
though.

Specially over that short a term.

It might be someone running something strange on you
bit of the distribution system. Maybe someone has got the
whole place turned into a cannabis grow house under lights
just up the road or something.

Lights wouldn't go on and off like that.

They might do if they are still setting them up.

"Tough Guy no. 1265" wrote in message
news
On Fri, 02 Oct 2015 06:06:55 +0100, harry
wrote:

On Thursday, 1 October 2015 23:20:36 UTC+1, Tough Guy no. 1265 wrote:
I just noticed the overvoltage indicator on my UPS going on and off
every few seconds, so I stuck a meter on the mains. It's varying from
240 to 253V every few seconds. Any reason a mains supply would do that?

--
"Th on my k yboard has stopp d working"

Voltage varies locally according to the connected load.
It could be a neighbour using something like an electric welder or large
power tool. This causes a voltage drop.

It could even the be passing clouds affecting someone's PV panels nearby.
My own + neighbour's panels drive the local voltage up around 10 volts on
a sunny day.

Neither of those are likely between 11:30pm and midnight.

True of most loads on your bit of the distribution
system apart from a cannabis grow house being setup.

But is quite possible with a tap changer having a brain fart.

On Fri, 2 Oct 2015 11:48:13 +1000, Jim Thomas wrote:

You have to vary the tap uses as the load on that segment changes.

It's not changing that quickly, in fact it's quite a smooth
change,
like I'm running off a generator where the engine is speeding up
and
slowing down. It's done this a few times before over the past
couple
of weeks, but only for about 2 minutes then stopped. This episode
has
been going on for half an hour, although every 5 minutes it stops
doing
it for 30 seconds.

I'm a little confused about how long it takes to go from 240 to 253
the 253 back to 240.

Likely the fault is just getting worse.

+1

It'll also depend on where in the distribution the rogue regulator
is. I think the steps @ 33 kV are 200 V which only produces a volt or
so change at the 230 V level.

I think I'll disconnect anything sensitive overnight and if it's
still
doing it tomorrow I'll phone them up.

I'd do it now if it was mine, because its been happening for a few weeks
and is getting worse. It likely won't be that easy to convince them that
they have a problem tho and that you are capable of monitoring the
voltage properly.

Aye, if the OP can log the supply volts at a suitable interval as
measured by his UPS and produce some nice graphs to wave at the
engineers when they call it helps. Also if you can read what the
voltge is when they have their meter connected to verify the accuracy
of the UPS readings.

Don't be fooled by some UPS voltage readings going to 1 decimal place
though. My APC may say 240.5 V but the resolution is only 1.3 V, ie
it will go 240.5, 241.8, 243.1 etc

Do they spot things like this with remote sensors or rely on
people
noticing?

That varys with the system. Some do
have remote monitoring, but most don't.

There is a VERY slightly noticeable change in the brightness of
CFLs
and incandescents, but LED bulbs don't at all. I doubt anyone
would
notice if they didn't have a UPS with a warning indicator.

Yeah, likely.

Very much so, we had half volts after an ice storm did a lot of
damage to the local distribution. Something woke me up and being half
asleep got very confused as CFL's appeared to work fine, some wall
wart PSU's where working fine, others were effectively off. When I
plugged in an incandescent lamp it was *very* dim... I think at that
point I got the voltmeter out followed by switching everything off at
the CU and calling the DNO.

I've phoned them before to complain about getting 255 volts, but
they
just said "That's within tolerance"

The upper limit is 253 (230 + 10%) but for them to really take notice
it has to be above that for 10 mins or so. Gives time for the
regulators to regulate.

- I guess a fluctuation is considered worse though.

Specially over that short a term.

Agreed. Our voltage is normally 240 V +/- 5 V 24/7, unless the local
primary substation is being feed by the back up 11 kV line not the
normal 33 kV one. There is a regulator at this end of the 11 kV
backup but it struggles to keep our volts below 253 for hours on end
at night. Last time the backup was used I managed to get someone to
take "ownership" of the problem and emailled daily plots of the
voltage as logged by my UPS. I think the information got to people
that matter and that regulator was going to get a good looking at, it
had struggled before. Now waiting for the next time the primary is on
the backup feed but if they have fixed it tolerably well (so the UPS
doesn't go into voltage reduction mode) I probably won't notice.

--
Cheers
Dave.

Another possibility is a high resistance joint in the neutral
between you and the nearest substation transformer. When
somebody else draws a high current this will cause your
voltage to rise. This could produce the smooth increase in
voltage that was reported.

It is definitely worth reporting, as such a fault could get
much worse and be very destructive when it does.

John

On Fri, 02 Oct 2015 11:19:13 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
On Fri, 02 Oct 2015 02:48:13 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news On Thu, 01 Oct 2015 23:29:54 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
I just noticed the overvoltage indicator on my UPS going on and off
every
few seconds, so I stuck a meter on the mains. It's varying from 240
to
253V every few seconds. Any reason a mains supply would do that?

Sounds like an automatic tap changer in the
supply authorities system has gone mental.

I didn't know they had those, is that how they keep the voltage so
precise?

Yep. It's the only way to do that.

It thought they had to have exactly the right amount of power stations
active.

That doesn't work with the voltage at the end of the distribution system.
You have to vary the tap uses as the load on that segment changes.

It's not changing that quickly, in fact it's quite a smooth change, like
I'm running off a generator where the engine is speeding up and slowing
down. It's done this a few times before over the past couple of weeks,
but only for about 2 minutes then stopped. This episode has been going
on
for half an hour, although every 5 minutes it stops doing it for 30
seconds.

Likely the fault is just getting worse.

I think I'll disconnect anything sensitive overnight and if it's still
doing it tomorrow I'll phone them up.

I'd do it now if it was mine, because its been happening
for a few weeks and is getting worse. It likely won't be that
easy to convince them that they have a problem tho and
that you are capable of monitoring the voltage properly.

Do they spot things like this with remote sensors or rely on people
noticing?

That varys with the system. Some do
have remote monitoring, but most don't.

We had the entire town grossly over voltaged one
evening as the load came off and the tap changer
didn't do anything. The PDP9 has an entire column
of fans up the side of the massive great door that
holds all the logic cards. The whole column quite
literally caught fire. Fortunately someone was
actually using it that evening and turned the
main switch off. Back in the 70s.

There is a VERY slightly noticeable change in the brightness of CFLs and
incandescents, but LED bulbs don't at all. I doubt anyone would notice
if
they didn't have a UPS with a warning indicator.

Yeah, likely.

I've phoned them before to complain about getting 255 volts, but they
just
said "That's within tolerance" - I guess a fluctuation is considered
worse
though.

Specially over that short a term.

It might be someone running something strange on you
bit of the distribution system. Maybe someone has got the
whole place turned into a cannabis grow house under lights
just up the road or something.

Lights wouldn't go on and off like that.

They might do if they are still setting them up.

But the voltage varied smoothly, if it was a load changing then someone was varying it gradually every few seconds to a precise timing, and the auto-tap changers weren't compensating. Now if I turn on my cooker full blast (oven, grill, all hobs), my voltage goes down by 1.5V. So for a change of 15V in another property, there'd have to be a huge load.

--
Reason to smile: Every 7 minutes of every day, someone in an aerobics class pulls a hamstring.

On Fri, 02 Oct 2015 11:22:08 +0100, Jim Thomas wrote:



"Tough Guy no. 1265" wrote in message
news
On Fri, 02 Oct 2015 06:06:55 +0100, harry
wrote:

On Thursday, 1 October 2015 23:20:36 UTC+1, Tough Guy no. 1265 wrote:
I just noticed the overvoltage indicator on my UPS going on and off
every few seconds, so I stuck a meter on the mains. It's varying from
240 to 253V every few seconds. Any reason a mains supply would do that?

--
"Th on my k yboard has stopp d working"

Voltage varies locally according to the connected load.
It could be a neighbour using something like an electric welder or large
power tool. This causes a voltage drop.

It could even the be passing clouds affecting someone's PV panels nearby.
My own + neighbour's panels drive the local voltage up around 10 volts on
a sunny day.

Neither of those are likely between 11:30pm and midnight.

True of most loads on your bit of the distribution
system apart from a cannabis grow house being setup.

But is quite possible with a tap changer having a brain fart.

I emailed the electricity board, all I've got so far is "passed to technicians".

--
A conclusion is simply the place where someone got tired of thinking.

"Tough Guy" (previously "Lieutenant Scott" plus numerous other nyms) is
a tedious attention-seeking trolling sad **** Brian. Beats me why
anyone with two brain cells to rub together falls for his bait, but it
would explain why Wodney falls for it every time. They should get
married and make babies in a tin shack somewhere in the Australian
outback along with the redbacks and venomous snakes. They'd be in
perfect company.


En el artículo , Brian-Gaff
escribió:

You do seem to attract unusual problems recently from your posts. Maybe they
ARE out to get you?

--
(\_/)
(='.'=) Bunny says: Windows 10? Nein danke!
(")_(")

"Mike Tomlinson" wrote in message
...

"Tough Guy" (previously "Lieutenant Scott" plus numerous other nyms) is
a tedious attention-seeking trolling sad **** Brian. Beats me why
anyone with two brain cells to rub together falls for his bait, but it
would explain why Wodney falls for it every time. They should get
married and make babies in a tin shack somewhere in the Australian
outback along with the redbacks and venomous snakes. They'd be in
perfect company.


En el artículo , Brian-Gaff
escribió:

You do seem to attract unusual problems recently from your posts. Maybe
they
ARE out to get you?

He did try to bypass his electric meter and failed, he fails in everything.
If the problem is in his house the engineer will refuse to enter due to
health reasons.
He has no hot running water..................... cats ****ting and ****ing
all over the dump and parrots ****ting where they please.
He also has cat fleas.
The place must stink.
Little wonder that he lives alone and can't get a job or a woman.

On 01/10/2015 23:20, Tough Guy no. 1265 wrote:
I just noticed the overvoltage indicator on my UPS going on and off
every few seconds, so I stuck a meter on the mains. It's varying from
240 to 253V every few seconds. Any reason a mains supply would do that?

Yes, plug yourself back in, that might fix it.


--
Cheers,

John.

/================================================== ===============\
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On Fri, 02 Oct 2015 19:48:41 +0100, John Rumm wrote:

On 01/10/2015 23:20, Tough Guy no. 1265 wrote:
I just noticed the overvoltage indicator on my UPS going on and off
every few seconds, so I stuck a meter on the mains. It's varying from
240 to 253V every few seconds. Any reason a mains supply would do that?

Yes, plug yourself back in, that might fix it.

I've been called may things, but capacitative isn't one of them.

--
What's the difference between a church and a cinema?
In a church they say "Pray in the name of Jesus!"
In a cinema they say "Shut up for christ's sake!"

On Thu, 01 Oct 2015 23:20:30 +0100, "Tough Guy no. 1265"
wrote:

I just noticed the overvoltage indicator on my UPS going on and off every few seconds, so I stuck a meter on the mains. It's varying from 240 to 253V every few seconds. Any reason a mains supply would do that?

With a 13v variation like that it would be very noticeable just with
your lighting.



--

Graham.

%Profound_observation%

On Fri, 02 Oct 2015 22:36:38 +0100, Graham. wrote:

On Thu, 01 Oct 2015 23:20:30 +0100, "Tough Guy no. 1265"
wrote:

I just noticed the overvoltage indicator on my UPS going on and off every few seconds, so I stuck a meter on the mains. It's varying from 240 to 253V every few seconds. Any reason a mains supply would do that?

With a 13v variation like that it would be very noticeable just with
your lighting.

It's a very smooth variation, and only some lights change brightness - the incandescents and CFLS, not the LEDs. And you do have to watch carefully as it's not a sudden change. Plus I had to connect the lighting circuit directly to the mains to observe it. Ever since we got the new substation, I've run them off the computer's UPS so they never get overvolted. I've not lost an LED bulb since, I used to replace them all the time. Although this fluctuation is very recent, for the last two years with the new substation, the voltage has often been about 253, which I correctly decided was ****ing up the LED bulbs.

--
My memory foam pillow has got Alzheimer's! -- Steve Pounder circa 2014

On Fri, 02 Oct 2015 22:36:38 +0100, Graham. wrote:

With a 13v variation like that it would be very noticeable just with
your lighting.

Incandescants sure, not so sure about CFLs and LEDs. They are feed
from (primative) SMPSU's and isolated from any variation in the
supply voltage.

When we had our half volts incident the CFLs still worked but having
been woken up and still half alseep not sure how much light they
where giving compared to normal. Note that is with the supply at 120
V or so... not a mere 13 V variation.

During the high overnight volts period the only light that noticeaby
changed was my desk lamp, incandescent, fed from the UPS. That
happened when the UPS tripped into voltage reduction mode...

--
Cheers
Dave.

On Fri, 02 Oct 2015 23:16:01 +0100, Dave Liquorice wrote:

On Fri, 02 Oct 2015 22:36:38 +0100, Graham. wrote:

With a 13v variation like that it would be very noticeable just with
your lighting.

Incandescants sure, not so sure about CFLs and LEDs. They are feed
from (primative) SMPSU's and isolated from any variation in the
supply voltage.

When we had our half volts incident the CFLs still worked but having
been woken up and still half alseep not sure how much light they
where giving compared to normal. Note that is with the supply at 120
V or so... not a mere 13 V variation.

During the high overnight volts period the only light that noticeaby
changed was my desk lamp, incandescent, fed from the UPS. That
happened when the UPS tripped into voltage reduction mode...

All my lights are run off the UPS due to me losing so many LED bulbs from overvoltages. The electricity board claimed 253V is within tolerance, but the LED bulbs disagreed. I put the lights temporarily direct to the mains to see if I could notice, and the CFLs dimmed even more than the incandescents. I guess it depends how they're designed.

Anyway, I was phoned by a very helpful electrician this morning from the electricity board (well the company that deals with the grid anyway), who told me that the severe fluctuations coincided with them replacing a large transformer at a nearby power station, and while they were doing this they manually tapped up the other one to compensate. I'm not sure why that caused the voltage to gradually and repeatedly vary, but nevermind.

When I mentioned I've had overvoltages up to 253V now and then for the last two years, he said that they've changed the guy that monitors the 240V substations around here. The previous one made sure everyone got 240V, the current one just sets it within tolerance. Strange, as I used to get 240V all the time +/-1, now I get 240V-253V, so it's not a different setting, but something that's varying or not being compensated for.

He also told me that automatic tappers are not used on the 240V substations, only 11kV and above. He said they'd be changing too often (and presumably wear out?)

He also said if I notice an overvoltage enough for the UPS to care (about 250V+) more than half a dozen times in the next two weeks, he wants to know.

--
A pack-a-day smoker will lose approximately 2 teeth every 10 years.